NAME

ibv_srq_pingpong - simple InfiniBand shared receive queue test

SYNOPSIS

ibv_srq_pingpong [-p port] [-d device] [-i ib port] [-s size] [-m size] [-q num QPs] [-r rx depth] [-n iters] [-l sl] [-e] [-g gid index] HOSTNAME

ibv_srq_pingpong [-p port] [-d device] [-i ib port] [-s size] [-m size] [-q num QPs] [-r rx depth] [-n iters] [-l sl] [-e] [-g gid index]

DESCRIPTION

Run a simple ping-pong test over InfiniBand via the reliable connected (RC) transport, using multiple queue pairs (QPs) and a single shared receive queue (SRQ).

OPTIONS

-p, --port=PORT

use TCP port PORT for initial synchronization (default 18515)

-d, --ib-dev=DEVICE

use IB device DEVICE (default first device found)

-i, --ib-port=PORT

use IB port PORT (default port 1)

-s, --size=SIZE

ping-pong messages of size SIZE (default 4096)

-m, --mtu=SIZE

path MTU SIZE (default 1024)

-q, --num-qp=NUM

use NUM queue pairs for test (default 16)

-r, --rx-depth=DEPTH

post DEPTH receives at a time (default 1000)

-n, --iters=ITERS

perform ITERS message exchanges (default 1000)

-l, --sl=SL

use SL as the service level value of the QPs (default 0)

-e, --events

sleep while waiting for work completion events (default is to poll for completions)

-g, --gid-idx=GIDINDEX

local port GIDINDEX

SEE ALSO

ibv_rc_pingpong(1), ibv_uc_pingpong(1), ibv_ud_pingpong(1), ibv_xsrq_pingpong(1)

AUTHORS

Roland Dreier

<rolandd@cisco.com>

BUGS

The network synchronization between client and server instances is weak, and does not prevent incompatible options from being used on the two instances. The method used for retrieving work completions is not strictly correct, and race conditions may cause failures on some systems.